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G. DALN. ROTATING GASLIGHTlNG APPARATUS.

I APPLCATION FILED NOV. I6, 1916.

1,385,816. Patented July 26, 1921.

lllllll/ UNITEDv STATES PATENT OFFICE.

GUSTAF DALN, OF LIDINGN, STOCKHOLM, SWEDEN, ASSIG-NOR TO AMERICAN l GASACCUMULATOR COMPANY, OF ELIZABETH, NEW JERSEY.

ROTATING GASLIG-HTING APPARATUS.

Specification of Letters Patent.

'Patented July 26:, 1921.

Application filed November 16, 1916. Serial No. 131,647.

T 0 all 'iu/wm t may concern:

Be it known that I, GUsTAF DALN, engineer, subject of the King of Sweden, residing at Skiirstra, Lidingn, Stockholm, Sweden, have invented new and useful Improvements in Rotating' Gaslighting Apparatus, of which the following is a speciiication.

My invention relates to gas lighting apparatus of the character in which a lens or similar apparatus associated with a gas light is caused to rotate by power derived from the gas employed for producing the light.

In the present construction, illustrating one convenient formot embodiment of my invention, I have shown a single diaphragm apparatus having a movable part connected with the rotating lens apparatus in such inanner that movement of said part causes rotary movement of the said lens apparatus.

ne of the objects of my invention is to provide a construction including a diaphragm apparatus which operates to supply a gas under constant pressure to a burner, a rotatable lens apparatus associated with the said burner and connections between a movable part, such as a diaphragm, of the diaphragm apparatus and the lens apparatus, whereby the movements of said part are transmitted to the said lens apparatus to cause rotary movement thereof. In other words, through the said connections energy impulses occurring at intervals are applied at intervals to the said rotary lens apparatus to cause rotation thereof.

A further object of my invention is to provide means whereby these energy impulses; that is, whereby the power applied at intervals from the diaphragm apparatus to the rotary len's apparatus, may be caused to effect or produce continuous rotation of the said lens apparatus at a substantially constant speed.

I cause or bring about the last mentioned result by making the said lens apparatus suiliciently large and properly proportioning its weig it relatively to the power supplied from the diaphragm apparatus to cause rotation thereof.

In cases when the flash light apparatus is provided with an incandescent gas burner the diaphragm apparatus preferably constitutes a mixing apparatus for gas and air, which mixture is conducted to the burner.

In the drawing Figure 1 is a side view,

other, and

' latter is caused to rotate with the partly in section, and Fig. 2 a horizontal view of the apparatus.

1 indicates the gas flash light apparatus which is to be put in rotation. The burner 2 carries an incandescent mantle 3 and is adapted to be ted with an air-gas-mixture, generated by means oi' a diaphragm apparatus of any suitable construction, Said diaphragm apparatus is shown on the drawing, consisting of an inner diaphragm casing t with gas inlet 5 and gas outlet 6 to the outer diaphragm casing 7, which is provided with an air inlet 8 and an outlet 9 to an accumulating chamber 10,` from which the gas-airmiXture is conducted through the conduit 11 to the burner 2. The arrangement is such that the gas outlet 6 from the diaphragm casing A is closed by the valve 12 until the gas pressure on the diaphragm 13 overcomes a. spring pressureon the valve, whereatter the gas inlet 5 is closed and the gas outlet 6 tothe diaphragms casing 7 is opened. The diaphragms 13 and 14 of the diaphragm casings 4; and 7 are connected with one anduring the upward stroke of the diaphragm 11i air is sucked into the casing 7 through the air inlet 8. When now gas flows into the casing 7 from the casing 4, such gas will be mixed with said air, and during the downward stroke of the diaphragms 13 and 14 owing to the fall of pressure in the casing 1 during the gas outflow period, the gas-air-mixture formed or produced is pressed into the accumulating chamber 10 by the diaphragm spring 15 and flows out from said chamber to the burner 2. The operation is then repeated. As the gas iiows from the chamber 10 the spring 14 presses the diaphragm v14 inwardly so that the gas is supplied to the burner 2 at a substantially constant pressure.

According to the invention the diaphragm 1A of the diaphragm casing is connected with a link 16, which by mea-ns of a lever 17 and a link 18 is connected with an arm 19, connected with a free sleeve 20 free to turn in one direction on a shaft 21 but which when attempted to be turned in the opposite direction is locked to the said shaft so that the said wheel. Any analogous or equivalent device, such as a ratchet wheel, may be substituted for the said wheel 20. The shaft 21 is connected with a vertical shaft 26 by means of a cog lud wheel transmission 22, 23, 24, 25, saidshaft 26 carrying a table 27, on which the lens apparatus 1 is secured. According to the construction shown the free sleeve is connected with the shaft 21 and is operated in such a manner, that the shaft 26 gets an impulse of energy each time the diaphragm 14 moves down under the action of the spring 15 that is, each time that the said diaphragm moves down the shaft 21 and the parts geared thereto, including the shaft 26, are positively rotated a certain distance. The impulses of energy it desired may be generatedrduring the upwardstrolre ot the diaphragm 14, or they may be generated during both the downward and the upward stroke of the same. The rotating mass of the lens apparatus is proportioned suiiciently large, and it necessary the table 27 for this purpose is constructed like a `flying-wheel, having a flyingwheel rim 27, soV that the lens apparatus 1, notwithstanding the intermittent impulses o energy transmitted to the shaft 26, will rotate with a practically continuous and constant speed.

Said speed may be regulated by adjusting the place of connection of the link 18 with the arm 19 by means of a screw 28. Coperating with a sleeve 29, to which the link 18 is attached.

What l claim as my invention is:

In a rotating gas lighting apparatus the combination of a burner, a diaphragm apparatus for producing a mixture of gas and air under a constant pressure, said apparatus comprising .a member which moves rectilinearly alternately in opposite directions, a conduit for conveying Athe gas and air mixture iromthe said diaphragm apparatus to the said burner to produce a continuous and practically constant flame in the latter, a

vlens apparatus associated with said burner,

said shaft whereby intermittent rotary movements are transmitted to the said shaft andV a relatively heavy member having operative connection with the said shaft to insure that the intermittent movements transmitted thereto by the said connections shall be converted into a continuously rotating movement.

In testimony whereof I have signed my name to this specification in the presence oi' twol subscribing witnesses.

GUsTAF DALN.

Witnesses WALDEMAR BOMAN, GRETA PRisN. 

